Lady Laʻakapu was born in ancient Hawaiʻi as a daughter of Huanuikeʻekeʻehilani and Keomahuʻilani (Ke-ō-mahuʻi-lani). Laʻakapu had two siblings.[3] According to the famous historian Samuel Kamakau, Laʻakapu was a descendant of the nobleman Kila.
Laʻakapu married High Chief Kahoukapu[4][5][6] of Hawaiʻi, who was the grandson of the famous Chief Kalaunuiohua. The son of Laʻakapu and Kahoukapu was the High Chief Kauholanuimahu, who became a ruler of his island after his father's death. Through him, Laʻakapu was an ancestress of many nobles and chiefs.
There is a famous legend about Laʻakapu and the birth of Kauholanuimahu. According to this old legend, she was unable to produce a child, so she asked the priest for the solution, and he told her that she need to catch a certain species of fish. Laʻakapu could not please the priest two times, and when she lost her patience, priest finally told her which kind of fish he wants. Priest[7] performed a ritual, and he sacrificed the fish. This time, after Laʻakapu slept with Kahoukapu, she bore a son.
Other consorts of Laʻakapu were Kanalukapu[8] and Lanakukahahauula. Children of Laʻakapu by Kanalukapu:
- Hilo (son)[9]
- Kapulaʻa (daughter)
Lanakukahahauula and Laʻakapu had a daughter, Lulanalomakukahahauula, who had three children.
It is not known when did Laʻakapu die.